Conveners
Sensors: Photo-detectors: Thursday Early
- Eliza Gazda (Georgia Institute of Technology)
- A. Nepomuk Otte
Sensors: Photo-detectors: Thursday Middle
- Oscar Romero Matamala (Georgia Institute of Technology)
- Samo Korpar
Sensors: Photo-detectors: Thursday Late
- Elena Popova (Moscow State University)
- Darya Selivanova
Description
Zoom Room: TIPP2021 Parallel Room 2
(see e-mail sent to registered participants for connection details)
26000 3-inch PMTs have been produced for Jiangmen Underground Neutrino Observatory (JUNO) by Hainan Zhanchuang Photonics Technology Co., Ltd (HZC) company in China and passed all acceptance tests with only 15 tubes rejected. The mass production began in 2018 and elapsed for about 2 years at a rate of ~1,000 PMTs per month. The characterization of the PMTs was performed in the factory...
The Micro-Channel Plate (MCP) is a specially crafted microporous plate with millions of independent channels, which have secondary electron emission capability. The MCP could be used as the electronic multiplier amplifier in the PMTs. There are two types of MCP Photomultiplier tube (MCP-PMT), large-area electrostatic focusing PMTs (LPMT) and small size proximity focusing PMTs (FPMT)...
The development of a single-photon detector based on a vacuum tube, transmission photocathode, microchannel plate and CMOS pixelated read-out anode is presented. This imager will be capable of detecting up to 1 billion photons per second over an area of 7 cm^2, with simultaneous measurement of position and time with resolutions of about 5 microns and few tens of picosecond, respectively. The...
In high momenta range, the construction of a Ring Imaging CHerenkov (RICH) detector for the particle identification at the future Electron Ion Collider (EIC) is a complicated task. A compact collider setup imposes to construct a RICH with a short radiator length, hence limiting the number of photons. The number of photons can be increase by choosing a far UV region, imposes to initiate a R&D...
In 2016 we have upgraded the COMPASS RICH by novel gaseous photon detectors based on MPGD technology. Four new photon detectors, covering a total active area of 1.5 square m, have been installed in order to cope with the challenging efficiency and stability requirements of the COMPASS physics programme. The new detector architecture consists in a hybrid MPGD combination: two layers of THGEMs,...
Many large scale particle detectors use photons as their primary event detection method, usually detecting numbers of photons and their arrival times. Photons also carry information about an event through their wavelength, polarization, and direction, but often little to none of this information is utilized. In this talk, we introduce the “dichroicon,” a Winston-style light cone comprised of...
Since the recent success in solving the long-standing aging issues of MCP-PMTs by applying an atomic layer deposition (ALD) technique to the MCP pores, these fast and B-field tolerant devices have become very attractive sensors for future experiments. Moreover, significant improvements in collection (CE) and quantum efficiency (QE) allow a DQE=QE*CE of ~30%. The DIRC detectors of the PANDA...
Fast timing photosensors are critical for Nuclear Physics and High Energy Physics instruments. Microchannel plate photomultipliers (MCP-PMT) have compact electron amplification design, providing them with precision timing performance and excellent magnetic field immunity.
We report the development of MCP-PMTs with low-cost microchannel plates functionalized by the atomic layer deposition...
The next Enriched Xenon Observatory (nEXO) is an experiment dedicated to the fundamental study of neutrinos. It searches for new physics beyond the Standard Model through the observation of the neutrinoless double-beta decay in xenon-136. The design of the nEXO time projection chamber includes Silicon Photmultipliers (SiPM) as key components to detect the scintillation light at 175nm, where a...
We present results from our ongoing development of Geiger-mode GaN-photodiodes. Motivated by the silicon photomultiplier's great success, our objective is to transfer the silicon-photomultiplier concept - a matrix of individually quenched single-photon avalanche diodes - to GaN and AlGaN. These are wide band-gap III-N semiconductors with much better intrinsic (V)UV sensitivity than silicon,...
Various particle detectors use optical fibres for tracking or to bring light from scintillators to photo sensors. In order to detect the photons, the fibres are typically aligned to arrays of SiPMs and these are read out with dedicated ASICs. We propose a novel, fully integrated solution based on an array of Single Photon Sensitive Avalanche Diodes (SPADs) fabricated in a CMOS technology, i.e....
This talk presents a characterization of the light emission from dark noise in Silicon Photomultipliers (SiPMs). SiPMs are made of arrays of $\sim10^4$ single photon avalanche diodes (SPADs) which are known to emit photons during the charge avalanche process. The spectral shape and emission rates of these photons are crucial data for understanding both external and internal cross-talk in these...
We are developing a high brightness atomic Muonium (Mu = $\mu^+$$e^-$) beam, amenable to the direct measurement of the gravitational interaction of $\mu^+$. The characterization of this source and the prospective gravity experiment require background-free detection of atomic Mu emitted from the surface of T=200 mK superfluid helium (He-II). We developed the prototype of this detector based on...
The TAO (Taishan Antineutrino Observatory) near detector of the JUNO (Jiangmen Underground Neutrino Observatory) neutrino experiment is a ton-level high energy resolution liquid scintillator (LS) Gadolinium-based detector. It will be located at a distance of about 30 - 35 m from the 4.6 GW core of the Taishan Nuclear Power Plant (NPP), China. The main goal of TAO will be the measurement of the...
Silicon PhotoMultiplier(SiPM) technology represents an almost ideal solid-state photon detector. For this reason the nEXO experiment is migrating to a SiPM-based light detection system. nEXO aims to probe the boundaries of the standard model of particle physics by searching for 0$\nu\beta\beta$ of 136Xe. Decays in the xenon produce both scintillation and ionization. The light flash is...
